Container with opposing concave sides



FIG. 1 is a front elevated view of a container with opposing concave sides showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is an isometric view thereof.

The broken lines in the drawings depict environmental subject matter, specifically a straw opening, and form no part of the claimed design. 

CLAIM The ornamental design for a container with opposing concave sides, as shown and described. 